v2.11.0

Gate dependencies

• The string-duplication scanner is a declared npm dependency (#316) — the
  myopia:string-duplication gate now declares find-duplicate-strings (npm,
  pinned) in its requirements(), so it appears in sm doctor --required-deps
  and the v2 GitHub Action installs it. The vendored copy under tools/ is a
  development convenience whose built output is gitignored, so it isn't present
  in a fresh clone or a pip/pipx-installed slop-mop — without this the gate
  warned-and-skipped in CI.

Fixes

• .slopmop/ gitignore management recognizes the contents form (#316) —
  ensure_slopmop_gitignored now treats .slopmop/* (used by repos that commit
  a file under .slopmop/, e.g. required-deps.json for the v2 Action) as
  already-ignored, instead of appending a duplicate .slopmop/ rule each run.